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Virtualization

ID	Contact Title	Contact Name	Country	Rating


1	Sales Consultant	Jaime Yorres	Argentina	1 2 3 4 5
2	Owner	Howard Snyder	Brazil	1 2 3 4 5
3	Sales Representative	Matti Karttunen	USA	1 2 3 4 5
4	Accounting Manager	Patricio Simpson	Bulgaria	1 2 3 4 5
5	Marketing Assistant	Elizabeth Lincoln	Spain	1 2 3 4 5
6	Marketing Manager	Hanna Moos	Brazil	1 2 3 4 5
7	Sales Representative	Howard Snyder	Brazil	1 2 3 4 5
8	Sales Manager	Elizabeth Lincoln	Argentina	1 2 3 4 5
9	Marketing Assistant	Matti Karttunen	USA	1 2 3 4 5
10	Marketing Manager	Jaime Yorres	France	1 2 3 4 5
11	Sales Agent	Georg Pipps	Bulgaria	1 2 3 4 5
12	Accounting Manager	Matti Karttunen	Argentina	1 2 3 4 5
13	Sales Agent	Jaime Yorres	USA	1 2 3 4 5
14	Sales Agent	Howard Snyder	Argentina	1 2 3 4 5
15	Sales Consultant	Matti Karttunen	Bulgaria	1 2 3 4 5
16	Owner	Howard Snyder	Spain	1 2 3 4 5
17	Sales Manager	Howard Snyder	Austria	1 2 3 4 5
18	Owner	Jaime Yorres	France	1 2 3 4 5
19	Sales Agent	Hanna Moos	Italy	1 2 3 4 5
20	Sales Associate	Howard Snyder	Argentina	1 2 3 4 5
21	Accounting Manager	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
22	Sales Associate	Matti Karttunen	Germany	1 2 3 4 5
23	Owner	Hanna Moos	France	1 2 3 4 5
24	Sales Representative	Patricio Simpson	Brazil	1 2 3 4 5
25	Sales Agent	Georg Pipps	USA	1 2 3 4 5
26	Marketing Assistant	Howard Snyder	Argentina	1 2 3 4 5
27	Sales Associate	Pascale Cartrain	Germany	1 2 3 4 5
28	Sales Manager	Patricio Simpson	USA	1 2 3 4 5
29	Sales Agent	Antonio Moreno	Italy	1 2 3 4 5
30	Sales Associate	Hanna Moos	USA	1 2 3 4 5
31	Sales Associate	Paul Henriot	Italy	1 2 3 4 5
32	Sales Associate	Antonio Moreno	Brazil	1 2 3 4 5
33	Sales Agent	Georg Pipps	Austria	1 2 3 4 5
34	Sales Associate	Jaime Yorres	Bulgaria	1 2 3 4 5
35	Sales Manager	Paul Henriot	Austria	1 2 3 4 5
36	Sales Agent	Hanna Moos	Brazil	1 2 3 4 5
37	Sales Associate	Hanna Moos	Austria	1 2 3 4 5
38	Accountant	Georg Pipps	Spain	1 2 3 4 5
39	Accountant	Patricio Simpson	Argentina	1 2 3 4 5
40	Accountant	Paul Henriot	Germany	1 2 3 4 5
41	Sales Consultant	Patricio Simpson	Germany	1 2 3 4 5
42	Sales Agent	Matti Karttunen	Spain	1 2 3 4 5
43	Accounting Manager	Jaime Yorres	Argentina	1 2 3 4 5
44	Sales Manager	Hanna Moos	Germany	1 2 3 4 5
45	Marketing Manager	Elizabeth Lincoln	France	1 2 3 4 5
46	Marketing Assistant	Elizabeth Lincoln	Germany	1 2 3 4 5
47	Accounting Manager	Pascale Cartrain	Spain	1 2 3 4 5
48	Sales Associate	Patricio Simpson	Bulgaria	1 2 3 4 5
49	Sales Representative	Pascale Cartrain	Germany	1 2 3 4 5
50	Sales Consultant	Pascale Cartrain	France	1 2 3 4 5
51	Owner	Matti Karttunen	Argentina	1 2 3 4 5
52	Accountant	Jaime Yorres	Germany	1 2 3 4 5
53	Sales Associate	Georg Pipps	Germany	1 2 3 4 5
54	Marketing Assistant	Pascale Cartrain	England	1 2 3 4 5
55	Accountant	Paul Henriot	Brazil	1 2 3 4 5
56	Marketing Assistant	Elizabeth Lincoln	Bulgaria	1 2 3 4 5
57	Sales Consultant	Hanna Moos	Spain	1 2 3 4 5
58	Sales Manager	Patricio Simpson	Bulgaria	1 2 3 4 5
59	Sales Agent	Hanna Moos	Argentina	1 2 3 4 5
60	Sales Associate	Howard Snyder	Bulgaria	1 2 3 4 5
61	Accountant	Matti Karttunen	Spain	1 2 3 4 5
62	Owner	Patricio Simpson	Argentina	1 2 3 4 5
63	Sales Agent	Georg Pipps	England	1 2 3 4 5
64	Sales Consultant	Hanna Moos	France	1 2 3 4 5
65	Owner	Antonio Moreno	Bulgaria	1 2 3 4 5
66	Accountant	Paul Henriot	Argentina	1 2 3 4 5
67	Marketing Manager	Matti Karttunen	France	1 2 3 4 5
68	Sales Associate	Patricio Simpson	Austria	1 2 3 4 5
69	Marketing Assistant	Elizabeth Lincoln	England	1 2 3 4 5
70	Marketing Manager	Paul Henriot	France	1 2 3 4 5
71	Sales Consultant	Hanna Moos	Germany	1 2 3 4 5
72	Owner	Howard Snyder	Brazil	1 2 3 4 5
73	Accountant	Pascale Cartrain	Spain	1 2 3 4 5
74	Marketing Assistant	Pascale Cartrain	USA	1 2 3 4 5
75	Sales Agent	Howard Snyder	England	1 2 3 4 5
76	Accounting Manager	Georg Pipps	Germany	1 2 3 4 5
77	Sales Representative	Patricio Simpson	England	1 2 3 4 5
78	Accounting Manager	Patricio Simpson	Italy	1 2 3 4 5
79	Marketing Assistant	Matti Karttunen	Bulgaria	1 2 3 4 5
80	Owner	Antonio Moreno	England	1 2 3 4 5
81	Accountant	Elizabeth Lincoln	Germany	1 2 3 4 5
82	Accountant	Antonio Moreno	Italy	1 2 3 4 5
83	Marketing Manager	Paul Henriot	USA	1 2 3 4 5
84	Sales Representative	Jaime Yorres	Bulgaria	1 2 3 4 5
85	Marketing Manager	Hanna Moos	France	1 2 3 4 5
86	Sales Consultant	Jaime Yorres	USA	1 2 3 4 5
87	Accounting Manager	Matti Karttunen	Italy	1 2 3 4 5
88	Sales Consultant	Georg Pipps	Germany	1 2 3 4 5
89	Owner	Antonio Moreno	Italy	1 2 3 4 5
90	Marketing Assistant	Hanna Moos	Brazil	1 2 3 4 5
91	Accounting Manager	Georg Pipps	England	1 2 3 4 5
92	Accountant	Antonio Moreno	England	1 2 3 4 5
93	Marketing Assistant	Patricio Simpson	England	1 2 3 4 5
94	Sales Representative	Patricio Simpson	Germany	1 2 3 4 5
95	Sales Consultant	Georg Pipps	Argentina	1 2 3 4 5
96	Owner	Jaime Yorres	France	1 2 3 4 5
97	Marketing Manager	Georg Pipps	Austria	1 2 3 4 5
98	Sales Agent	Antonio Moreno	Austria	1 2 3 4 5
99	Sales Agent	Elizabeth Lincoln	Germany	1 2 3 4 5
100	Sales Consultant	Jaime Yorres	France	1 2 3 4 5


...281 282 283 284 285 286 287 288 289 290 ... Item 282001 to 283000 of 300000 Page: of 300 GoPage size:

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Columns
- ID
- Contact Title
- Contact Name
- Country
- Rating

About this demo
C#
VB
Download demo code files
Isolate this demo as a stand-alone application

RadGrid's virtualization feature allows you to handle hundreds of thousands of rows without negatively impacting the user experience. The control achieves this thanks to its ItemsPerView property allowing you to control the number of items loaded at a time. Users can now scroll, as well as show, hide, resize and reorder columns without any waiting time.

This demo shows how quickly Telerik's ASP.NET DataGrid can handle user interactions with 300,000 items. You can configure the component to allow scrolling through the entire data set or only through the current page by using EnableCurrentPageScrollOnly property,.

<%@ Page Language="c#" CodeFile="DefaultCS.aspx.cs" Inherits="Telerik.GridExamplesCSharp.Performance.Virtualization.DefaultCS" %>

<%@ Register TagPrefix="telerik" Namespace="Telerik.Web.UI" Assembly="Telerik.Web.UI" %>
<%@ Register TagPrefix="qsf" Namespace="Telerik.QuickStart" %>
<!DOCTYPE html>
<html xmlns='http://www.w3.org/1999/xhtml'>
<head runat="server">
    <title>Telerik ASP.NET Example</title>
    <link href="styles.css" rel="stylesheet" />
</head>
<body>
    <form id="form1" runat="server">
    <telerik:RadScriptManager runat="server" ID="RadScriptManager1" />
    <telerik:RadSkinManager ID="RadSkinManager1" runat="server" ShowChooser="true" />
    <telerik:RadAjaxLoadingPanel runat="server" ID="RadAjaxLoadingPanel1"></telerik:RadAjaxLoadingPanel>
    <telerik:RadAjaxPanel runat="server" ID="RadAjaxPanel" LoadingPanelID="RadAjaxLoadingPanel1" CssClass="demo-container">
        <telerik:RadGrid RenderMode="Lightweight" ID="RadGrid1" runat="server"  AutoGenerateColumns="false"
            AllowSorting="true" GroupingEnabled="false"
            EnableHeaderContextMenu="true" AllowPaging="true" PageSize="1000" OnNeedDataSource="RadGrid1_NeedDataSource">
            <MasterTableView TableLayout="Fixed">
                <Columns>
                    <telerik:GridBoundColumn UniqueName="ID" HeaderText="ID" HeaderStyle-Width="50px" DataField="ID"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactTitle" HeaderText="Contact Title" HeaderStyle-Width="150px" DataField="ContactTitle"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="ContactName" HeaderText="Contact Name" HeaderStyle-Width="150" DataField="ContactName"></telerik:GridBoundColumn>
                    <telerik:GridBoundColumn UniqueName="Country" HeaderText="Country" HeaderStyle-Width="100px" DataField="Country"></telerik:GridBoundColumn>
                    <telerik:GridRatingColumn UniqueName="Rating" HeaderText="Rating" HeaderStyle-Width="100px" DataField="Rating"></telerik:GridRatingColumn>
                </Columns>
            </MasterTableView>
            <ClientSettings ReorderColumnsOnClient="true" AllowColumnsReorder="true" ColumnsReorderMethod="Reorder">
                <Virtualization EnableVirtualization="true" InitiallyCachedItemsCount="2000"
                    LoadingPanelID="RadAjaxLoadingPanel1" ItemsPerView="100"/>
                <Scrolling AllowScroll="true" UseStaticHeaders="true" ScrollHeight="500px" />
                <Resizing AllowColumnResize="true" />
            </ClientSettings>
            <PagerStyle Mode="NextPrevNumericAndAdvanced"></PagerStyle>
        </telerik:RadGrid>
    </telerik:RadAjaxPanel>
    </form>
</body>
</html>

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